Strange indeed! The Telerik.Web.UI.WebResource.axd handler is not directly
related to RadUpload's operation. It is needed by the RadScriptManager
As per the intellisense - does the website's web.config file has a reference to an older Telerik.Charting
assembly? Also, did you change the assemblies in your website's bin folder with the ones in the package I sent you?
If so, this is the registration to the Telerik.Charting
assembly, located in your GAC. As the package I sent you contains different versions of Telerik.Web.UI
assemblies, the Visual Studio IDE gets "confused" and cannot display the intellisense information. If you have the Telerik.Charting
assembly in the website's bin folder, you can simply delete the registration in the web.config file.
Let me know if that helps.
the Telerik team
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